Keysight FieldFox B Series User Manual page 849

Safety Considerations
Battery Markings
Keysight N9938-90006 User's Guide
This symbol marks the standby position of the power line switch.
This symbol marks the ON position of the power line switch.
This symbol marks the OFF position of the power line switch.
This symbol indicates the input power required is AC.
This symbol indicates DC voltage.
This symbol indicates a three-phase alternating current.
This symbol indicates frame or chassis terminal.
This symbol indicates the presence of a laser device.
This symbol identifies the Protective Conductor Terminal.
This symbol indicates the equipment is protected throughout by double or
reinforced insulation.
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